The Bloodvein River system flows out of Lake Winnipeg and eventually to Hudson Bay - so you can have the best of both worlds - Current and wind at your back.

Also, as a side, these are different lakes than Q/BW.  Most are shallower but much colder and walleye can be few and far between.  NP and LT abound but I don't remember a single SM when we were there early 90's.  I'd give you my maps Jimbo but they were consumed by the Phantom Phire of 2003.   We were in the southern part of the park so I can't speak to the northern 2/3rds of it.  If I recall, we put in on Leano Lake headed west to . . . can't remember.  It was a 14 day trip - just about equal to the amount of time it took us to get there from Red Lake ONT.  ::)  That road was no more than a wide portage.